Warning: valid_hostname: empty hostname

2013-08-12 Thread LuKreme
What exactly does this warning mean?

 mail postfix/smtpd[42297]: warning: valid_hostname: empty hostname

-- 
Power corrupts.  Absolute power is kind of neat.



Re: Warning: valid_hostname: empty hostname

2013-08-12 Thread Wietse Venema
LuKreme:
 What exactly does this warning mean?
 
  mail postfix/smtpd[42297]: warning: valid_hostname: empty hostname

It means that something had an empty hostname. You provide too little
context to determine what that something was, so I won't speculate.

Wietse


Re: Warning: valid_hostname: empty hostname

2013-08-12 Thread LuKreme
On 12 Aug 2013, at 10:46 , Wietse Venema wie...@porcupine.org wrote:
 LuKreme:
 What exactly does this warning mean?
 
 mail postfix/smtpd[42297]: warning: valid_hostname: empty hostname
 
 It means that something had an empty hostname. You provide too little
 context to determine what that something was, so I won't speculate.

It looks like it is firing the warning before a connecting that identifies 
itself by IP address.

-- 
Were it not for frustration and humiliation
I suppose the human race would get ideas above its station.
   -Ogden Nash



Re: Warning: valid_hostname: empty hostname

2013-08-12 Thread Wietse Venema
LuKreme:
 On 12 Aug 2013, at 10:46 , Wietse Venema wie...@porcupine.org wrote:
  LuKreme:
  What exactly does this warning mean?
  
  mail postfix/smtpd[42297]: warning: valid_hostname: empty hostname
  
  It means that something had an empty hostname. You provide too little
  context to determine what that something was, so I won't speculate.
 
 It looks like it is firing the warning before a connecting that
 identifies itself by IP address.

The warning may be logged among other things while Postfix evaluates
check_*_mx_access, reject_unknown_sender_domain, and other features
that look up hostname information.

Wietse